Business Segments (Restructuring Costs) (Details 1) (Education [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Education [Member]
Restructuring Cost and Reserve [Line Items]
Accelerated depreciation	$ 16,856	$ 17,230	$ 3,965
Lease obligation losses	9,351	9,794	7,570
Severance	6,289	14,349	17,205
Accelerated amortization of intangible assets	0	2,595	0
Other	3,862	1,274	205
Total restructuring costs	$ 36,358	$ 45,242	$ 28,945

Amount of other expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses associated with a discontinued operation or an asset retirement obligation.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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- Definition

Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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